Automatic reeling machine



Mamh 1, 1935. I. KOWADA 1,994,106

AUTOMATIC REELING MACHINE Original Filed Jan. 12, 1932 2 Sheets-Sheet 1I 9 I g l/ ow z March 12, 1935. l. KOWADA 1,994,106

' AUTOMATIC REELING MACHINE Original Filed Jan. 12, 1952 2 Sheets-Sheet2 17 I I Fay. 3

Patented Mar. 12, 1935 UNITED STATES PATENT OFFICE Divided and thisapplication March 12, 1934, Serial No. 715,201

2 Claims.

This invention has reference generally to improvements in automaticstopping mechanisms and more particularly to an improved device for tostop the movement of a reeling frame rapidly and accurately but to alsocause the reeling frame to reversely rotate by its reaction force whenit stops thus relieving the tension of the thread and preventingsnapping thereof.

As an additional and equally important-object the invention contemplatesthe provision of manually operable resiliently controlled means forreleasing the reeling frame after it has been stopped in order to permitthe latter to easily return to an operative position.

Briefly stated the invention may be said to consist of a constantlyrotating large friction wheel carried by-the shaft of the reeling frame,means being provided for movably mounting one end of the shaft whileco-operating therewith is a pawl and ratchet mechanism which is, re-

sponsive to means actuated by a knot in the thread being wound to effectraising of the shaft and disengagement of the friction wheels.

More specific objects of the invention consists in the provision of amovably mounted lever in which is journalled one end of the reelingframe supporting shaft and a manually operable spring controlled checklever for'holding the movable lever in a raised position subsequent tothe operation of the pawl and ratchet mechanism.

Other objects as well as the nature, characteristic features andscope ofthe invention will be, more readily apparent from the followingdescription taken in connection with the accompanying drawings andpointed out in the claims forming apart of this specification.

The invention is clearly illustrated in the accompanying drawings, inwhich:-

Fig. 1 is a longitudinal sectional elevation of a portion of thisdevice.

Fig. 2 is a partial sectional elevation showing the working condition ofthe reeling frame.

Fig. 3 is a longitudinal elevation of the reeling frame while at-rest.

Fig- 4 is a part sectional elevation of the reeling frame in the samecondition as in Pig. 3.

The construction and working of the different parts of the automaticalstopping device of .the' reeling frameof this invention will be fullyexplained referring to the drawings as described above.

A constantly rotating wheel (1) is arranged to contact with a smallfriction wheel (2) so that the small wheel is rotated by frictionaltransmission from the larger wheel (1).

The friction wheel (2) is fixed to one end of a shaft (4) on which thereeling frame (3) 10 is also mounted.

Adjacent the smaller friction wheel (2) ,and on the same axis, a ratchetwheel (5) is fixed which engages with a pawl (6) on one end of abellcrank lever (7) said pawl (6) permitting or stop- 15 ping therotation of the ratchet wheel (5) The bell-crank lever ('7) is connectedby a connecting rod (8) to the rear end of a sustaining lever ,(9) whichcarries the knot remover (9') at its other end.

On one side of the bell-crank lever (7), counterweight (10) is arrangedso as to keep balance.

When the knot remover (9') works without any interference, the lever (9)and connecting rod (8) will be pulled up and the pawl (6) will 25 notengage with the ratchet wheel (5) and thus normal operation is attained.

The ratchet wheel (5) and the reeling frame shaft (4) is supported at anintermediate point .on a rocking lever (12). The lever (12) may 30 rockabout its pivot (11), but still allows the winding wheel to rotate andthe supporter (14) is pivoted on the frame (13), so as to receivetherein one end of the rocking lever (12) and to limit the rockingsphere of the lever.

Adjoining the side of the rocking lever (12), a check rod (16) having asloping side and a step (15) is pivoted to'a frame (13). A spring (17)tends to push the check rod (16) toward th side of the reeling frame(3). 40

Now to explain the working of the same device, and referring to Fig. 1and 2, when the threads passing through the knot remover (9) havecomparatively larger knots and thereby pull up the knot remover (9') therocking of the lever 45 (9) will cause connecting rod (8) to move downwhereby one arm of the bell-crank lever (7) will move down, rock theother arm and the pawl (6) will thus engage with the ratchet wheel (5)and stop suddenly the rotary motion of the reel- 50 ing frame (3). Inthis case. the lever (12) with the reeling frame axis (4) will move upby the inertia of the rotation of the reeling frame and the lever (12)is lifted up and retained in position by the step (15) of the check rod('18), consequently the smaller friction wheel (2) is disconnected withthe larger wheel (1). By the reaction of the shock caused by themovement of the rocking lever (12) and the upper part of the supporter(14), the reeling frame (3) is made to have some reverse rotation,thusgiving somerelaxation to the reeling threads.

In order to return the reeling frame (3) into an operative position itis only necessary to push the check rod (16) against the tension of thespring, that is to the left side in the drawings (see Fig. 2 and Fig.4). As a result the step (15) is disconnected from the rocking lever(12) and the shaft of the reeling frame (4) and the rocking lever (12)regains its former position in order to allow the larger and smallerwheels (1) (2) to come into contact with each other. 7

Having thus fully described the invention what is claimed and desired tobe secured by Letters Patent is:

1. An automatic stopping mechanism for reeling frames including incombination main driving means, a rotatably mounted shaft actuatedthereby, a reeling frame on said shaft on which a thread is wound, meansfor movably mounting one end of the shaft, a ratchet wheel on the shaft,an operably mounted pawl for cooperating with the ratchet wheel, a leverarrangement associated with the pawl and actuated by a knot in thethread being wound to cause the pawlto engage the ratchet wheel, theshock of the latter engagement causing a raising of the movably mountedend of the shaft and a stoppin of the rotation thereof, and means forreleasably holding the raised end of the shaft in a raised position.

2. An arrangement as claimed in claim 1,.

wherein the means for releasably holding the raised end of the shaftincludes a resiliently mounted lever provided with a sloping side and astep.

ISOJI KOWADA.

